Dobie Gillis

Dwayne Hickman

Maynard G. Krebs

Bob Denver

Zelda Gilroy

Sheila James

Herbert T. Gillis

Frank Faylen

Mr. Leander Pomfritt

William Schallert

Winnie Gillis

Florida Friebus

Clarice Armitage/Mrs. Chatsworth Osborne Sr.

Doris Packer

Chatsworth Osborne Jr.

Steve Franken

Thalia Menninger

Tuesday Weld

Milton Armitage

Warren Beatty

Riff Ryan

Tommy Farrell

Captain Lopez / Generalissimo Sebastien Romero / President Carlos Rubero

Alberto Morin

Melissa Frome

Yvonne Lime

Davey Gillis

Darryl Hickman

Officer Sam Parmalee / Committee President Hawley / Police Officer Bloodhound Mulcahey

Richard Reeves

Chrissie Tyler (as Mike Burns)

Michael Burns

Blossom Kenney

Marjorie Bennett

Mrs. Ruth Adams/Dr. Burkhart

Jean Byron

Max Perkins

Robert Paget

Guest Star

James Yagi

Guest Star

Diane Jergens

Fifi LaVerne / Molly O'Day

Carole Cook

Guest Star

Joel Crothers

Guest Star

Penny Parker

Guest Star

Jack Albertson

Guest Star

Willis Bouchey

Guest Star

Ron Howard

Guest Star

Alan Carney

Derek

David Frankham

Guest Star

Mel Blanc

Guest Star

Janice Carroll

Guest Star

Charles Watts

Guest Star

Milton Frome

Guest Star

Angelo De Meo

Guest Star

Bart Carlin

Mrs. Lapping

Verna Felton

Guest Star

Roy Hemphill

Guest Star

Guy Lee

Guest Star

Sondra Rodgers

Guest Star

Michael J. Pollard

Guest Star

Colin Campbell

Hermione Krausmeyer

Gina Gillespie

Guest Star

Romney Tree

Guest Star

Douglas Odney

Guest Star

Barbara Riley

Telephone Operator (voice)

Bea Benaderet

Guest Star

Kay Stewart

Guest Star

Bill Tennant

Guest Star

Marlo Thomas

Guest Star

Stanley Adams

Guest Star

Herbert Anderson

Guest Star

Jim Johnson

Hazel Grimes

Yvonne Craig

Guest Star

Ryan O'Neal

Guest Star

Francis X. Bushman

Bobby Wilkins (as Donald Keeler)

Joey D. Vieira

Donna Whittaker

Ellen Burstyn